baber/WOPTO huggingface dataset:
Patent GB-1016664-A (GB)
Title: Anthraquinone dyestuffs
IPC: C09B1/54
Filed: 1964-08-14
Abstract: The invention comprises anthraquinone dyes of the general formula <FORM:1016664/C4-C5/1> in which X is a halogen atom or an alkyl, hydroxyalkyl, alkoxy, hydroxyalkoxy, or alkylmercapto radical, R is a substituted or unsubstituted aryl radical and n has the values 0, 1, 2 or 3. The dyes may be made by reacting 1 - amino - 4 - aryl - sulphonamido - anthraquinones having exchangeable groups in the 2-position, e.g. sulphonic acid or halogen groups, with substituted or unsubstituted phenols, or by reacting 1,4 - diamino - 2 - phenoxy-anthraquinones with aryl-sulphohalides.  R above is preferably a p-toluyl radical.  The reaction using phenols is generally effected in the presence of a strong alkali, e.g. potassium or sodium hydroxides or carbonates and at temperatures of 100-180 DEG C. whilst the reaction employing sulphohalides, especially chloro and bromo derivatives, is effected in a solvent at 100-150 DEG  C. optionally in the presence of an acid binding agent, solvents referred to being toluene, chlorobenzene, nitrobenzene, pyridine and dioxan.  The following compounds as well as the general class of compounds above are claimed per se. 1 - amino - 2 - phenoxy - 4-p - toluene - sulphonamido - anthraquinone; 1 - amino - 2 - (41 - methoxy - phenoxy) - 4 - p-toluene - sulphonamido - anthraquinone; 1-amino - 2 - (31 - chlorophenoxy) - 4 - p - toluene-sulphonamido anthraquinone; 1 - amino - 2-phenoxy - 4 - p - chlorobenzene - sulphonamido - anthraquinone; 1 - amino - 2 - phenoxy-4 - (31,41 - dichlorobenzene -sulphonamido-anthraquinone; 1 - amino - 2 - phenoxy - 4-p - nitrobenzene - sulphonamido - anthraquinone; 1 - amino - 2 - phenoxy - 4 - (31-nitrobenzene - sulphonamido) - anthraquinone; 1 - amino - 2 - phenoxy - 4 - benzene - sulphonamido - anthraquinone; 1 - amino - 2 - phenoxy-4 - o - toluene - sulphonamido - anthraquinone; 1 - amino - 2 (41 - methyl-mercapto -phenoxy)-4-p-toluene-sulphonamido-anthraquinone.ALSO:Polyester materials are dyed using dyes of general formula <FORM:1016664/D1-D2/1> in which X is halogen, alkyl, hydroxyalkyl, alkoxy, hydroxyalkoxy, or alkyl mercapto, R is a substituted or unsubstituted aryl group and n has the values O, 1, 2 or 3.  The dyeing is effected in the presence of carriers at 100 DEG C. or preferably at 110-130 DEG C. under pressure.  The dyes are also suitable for use in the thermosol process by which the dyes are fixed by heating at temperature of about 200 DEG C.
Patent GB-1076925-A (GB)
Title: Gelatine coating compositions of reduced viscosity
IPC: G03C7/388
Filed: 1964-08-14
Abstract: Low viscosity gelatine coating compositions comprise as viscosity-reducing agent a water-soluble poly-1,3-propylene glycol ether containing at least two propylene oxide units the central carbon atoms of which are substituted by an oxyalkylated methylol group containing at least one ethylene oxide unit.  Optionally, the central carbon atoms may also be substituted, e.g. by lower (C1- 5) alkyl or methyl-C1- 5\t alkoxy groups.  Preferred compounds are those of the general formula <FORM:1076925/C3/1> wherein R is a hydrogen atom, a C1- 5 alkyl radical or a methyl alkoxy group containing up to 5 carbon atoms in the alkoxy group; -R1-O-, -R11-O-, -R111-O- each represent ethylene oxide units which may be substituted by C1- 3 alkyl radicals or by phenyl radicals; m is an integer from 2-15, n is an integer from 1-15 and n1 is 0 or an integer from 1-15.  The compositions are particularly useful in formulating gelatine coatings comprising silver halides and diffusion resistant azo dyestuffs or colour couplers.
Patent GB-343999-A (GB)
Title: Improvements in thermionic amplifiers
IPC: H03G3/16
Filed: 1929-11-01
Abstract: 343,999. Valve amplifying circuits. RADIO FREQUENCY LABORATORIES, Inc. ; Boonton, New Jersey, U.S.A. Nov. 1, 1929, No. 33296. Convention date, Oct. 3. [Class 40 (v).] An amplifier comprises two thermionic amplifying-valves 1, 2 arranged differentially, that is with grids G1 in parallel and plates in push-pull or vice versa (Fig. 7, not shown). Volume is controlled by varying the grid bias on one or both valves by potentiometers 13<1>, 13<11>. If both are varied the sum of the biases is kept constant. When the stage gain, resulting from the difference in the grid biases, is small, the amplification is substantially distortionless (Fig. 3, not shown). According to a modification, volume is controlled by varying the potential on one of the screening-grids G2 (Fig. 6, not shown).
Patent GB-647742-A (GB)
Title: Process and apparatus for the manufacture of ammonium sulphate crystals
IPC: C01C1/242
Filed: 1947-12-17
Abstract: <PICT:0647742/III/1> <PICT:0647742/III/2> In making ammonium sulphate crystals by treating coke oven gas containing ammonia with sulphuric acid, the gas is passed upwardly through a scrubber 4, Fig. 1, from inlet 1 and meets a spray of saturated ammonium sulphate liquor containing sulphuric acid, from nozzle 9, to give a liquor supersaturated with ammonium sulphate, which is collected in crystallizer 3 from which the crystals are withdrawn by line 23. Saturated liquor, after passing through the baffled overflow pot 8, and with the addition of sulphuric acid through inlet 11, is pumped to the spray nozzle.  In the overflow pot, tar is separated through outlet 14 and fine crystals are settled and pumped with the bottom portion of liquid through pipe 16 back to the crystallizer.  The liquor in the crystallizer is kept in circulation by pump 20.  The scrubber and crystallizer may be heated by steam jackets 4a, 4b, to prevent incrustations and for the same purpose the scrubber wall is conically widened and hot water added to the liquor sprayed from ring 12 and nozzle 17. In a modification, Fig. 3 (part), the scrubber 50 is separate from the crystallizer 60, the liquor being delivered to the latter through a V-shaped overflow pipe 59 providing a liquid seal.  Acid liquor is delivered through a coarse spray 54 which sweeps down any particles carried up from the fine spray 55 and the spray 56 in the gas inlet 51.  The quantity of sprayed liquor may be at a rate exceeding 3000 gallons per ton of sulphate produced and such that its percentage acid content is lowered by the absorption of the ammonia by not more than 4.
Patent GB-624690-A (GB)
Title: Improvements in apparatus for controlling the frequency of thermionic oscillators
IPC: H03L7/06
Filed: 1945-12-11
Abstract: 624,690. Automatic control systems for thermionic oscillators. PELLE, P. Dec. 11, 1945, No. 33413. Convention date, March 5, 1943. [Class 38 (iv)] [Also in Group XXXVIII] Frequency control.-A thermionic oscillator forming part of a telegraphic receiving system, is synchronized by time spaced line pulses operating relay 23, the armature 25 of which alternately charges condensers 18 and 19 from battery 24. While the appropriate condenser is being charged, the standing-bias applied by battery 17 to the rectifiers 13, 14, constituting a normally closed gate circuit, is overcome by a voltage developed by the condenser charging current from battery 24 so that the gate momentarily opens, applying to the grid of valve 28, a voltage pulse derived from a sawtooth wave form generated by thyratron 3 in synchronism with the controlled oscillator frequency, and coupled to the gate circuit by transformer 8. The successive voltage pulses are amplified by valve 28, summed and averaged by the condenser-resistance circuit 31, 32 and the resultant steady voltage, after amplification by valve 39, is applied to the grid 38 of a capacitance valve 33 connected across the tuned circuit of the thermionic oscillator, whose frequency is thereby controlled. When the increasing synchronizing pulses occur at the correct phase angle of the controlled oscillation, they gate the saw-tooth voltage when it is swinging through zero from negative to positive, so that zero voltage is instantaneously applied to the grid of valve 28. Irregularities in pulse arrival times, due to random retardations, arising along the line cause the application of positive or negative pulses to the grid of valve 28 according to the sense of the deviations. The amplified pulses are averaged, amplified, and initiate frequency control dependent on the average deviation of the synchronizing pulses from their correct instants of arrival. Specifications 525,342 and 565,703 are referred to.
Patent GB-1149896-A (GB)
Title: Crimped tow
Inventor: DIXON OLAF GEORGE
IPC: D02G1/12
Filed: 1965-08-05
Abstract: 1,149,896. Crimping fibres. COURTAULDS Ltd. 4 Aug., 1966 [5 Aug., 1965], No. 33496/65. Heading D1F. In a compressive, so-called "vertical" crimping process a band of parallel cellulose acetate filaments, which have some degree of interfilament adhesion (as may be induced by moistening or feeding through high pressure nip rolls or by low nip pressure combined with application of plasticiser) and which may have been softened by steam treatment, is fed to a stuffing-box crimper in which the width of the entry opening of the box is sufficient to accommodate the band and the height of such opening is not more than 3/16 inch.
Patent GB-618707-A (GB)
Title: Double grip locking wrench with detachable jaw
IPC: B25B13/16
Filed: 1946-11-12
Abstract: 618,707. Wrenches. PHILPOTTS, H. Nov. 12, 1946, No. 33631. Addition to 602,224. [Class 61 (iii)] The wrench of the parent Specification comprising a detachable U-shaped jaw member 11 adapted to be locked in the body 10 by a rotatable toothed T-headed member 18 engaging teeth on the legs of the jaw member 11 and tightened on the work by a nut part 32 on the rotatable handle 33 engaging the threaded stem of the member 18 has the body formed of two channel section members facing one another and welded together along their meeting edges and a thrust washer or washers 37 are interposed between the end of the body stem and a shoulder on the handle. When the jaws are shaped to provide a polygonal outline for gripping a nut, the teeth 14 may be dispensed with. The friction between the screw and nut member may be increased to ensure actuation of the T-headed locking member when the handle is rotated by various means such as an interposed fibre washer 45, Fig. 10, and then springs 46, Fig. 12, may be riveted opposite one or both openings 24 in the body to assist in moving the locking member out of engagement.
Patent GB-307778-A (GB)
Title: Process for the manufacture of cyanides
IPC: C01C3/02
Filed: 1927-12-13
Abstract: 307,778. Carpmael. A., (I. G. Farbenindustrie Akt.-Ges.). Dec. 13, 1927. Sodium and other cyanides.-Cyanides are prepared by reducing cyanates with carbon monoxide. Sodium cyanate mixed with indifferent materials such as magnesia or graphite is reduced by carbon monoxide at about 700‹ C.
Patent GB-1240001-A (GB)
Title: Improvements relating to exhaust silencers for internal combustion engines
Inventor: BURBERY ALAN JOHN
IPC: F01N1/10
Filed: 1968-07-16
Abstract: 1,240,001. Exhaust silencers. BRITURO SILENCERS Ltd. June 24, 1969 [July 16, 1968], No.33744/68. Heading F1B. An exhaust silencer for a motor cycle I.C. engine comprises a tubular sheet metal body 10 containing a perforated tube 16 and fibrous or particulate packing 27 retained therein by a cast metal end cap 30 which is readily detachable by removal of screws 36. The packing 27 may comprise steel wool wound generally helically along the tube 16. The tube 16 comprises two perforated portions 18, 19 welded together with a perforated baffle 20 therebetween, the baffle causing at least a portion of the exhaust gas to flow radially outwardly through the tube portion 18 into the material 27. A mounting strut 41 is adjustably connected to the silencer by a bolt 39 located in a slot 38 in a channel member 37 welded to the body 10.
Patent GB-176129-A (GB)
Title: Improvements in casement windows
IPC: E06B3/40
Filed: 1920-12-01
Abstract: 176,129. Rixon, W., Howie, J., and Rowlands, W. Dec. 1, 1920. Casement windows.-A metal casement window B is pivoted at the sill and head in the ends of the arms of a frame A extending along one side and about one-third the distance across the window opening, so that the window when opened can be cleaned on both sides. The pivot bearings have flats to limit the opening of the window.
Patent GB-1356448-A (GB)
Title: Data communication system
IPC: G07F7/08
Filed: 1971-07-20
Abstract: 1356448 Data signalling PITNEY-BOWES Inc 20 July 1971 [27 July 1970] 34054/71 Heading G4H In a data signalling system for the verification of credit cards prior to a sale, data encoded on the card is transmitted from a remote station at a sales point to a central computer wherein this data is checked with the memory store to send back one of four instructions: a "do not sell" command; a request for further information; a request for the operator to phone a particular number; or approval of the sale by the transmission of a two digit decimal number. The information is passed through the telephone system, and the central computer, via a suitable coding device, emits two pulse trains each of bursts of a different frequency f 1 , f 2  and each comprising from zero to 11 pulses in a certain interval. These trains are received on line 12 at 62 in the remote station 14 and are fed to two bandpass filters 64, 66 tuned to the frequencies f 1 , f 2  respectively each having outputs to respective solenoids C 1 , C 2  adapted to rotate counter wheels W1, W2 by one increment per pulse received. The counter wheels have 12 positions, digits 0-9 and two "blank" positions. If the sale is authorized by information stored at the central computer two trains of at least two pulses of each frequency are transmitted and the wheels W1 and W2 are rotated to display respective digits of a decimal number, a timing device 82 closing contact 78 at the end of a transmission interval. As shown, the first blank position W1A, W2A is fitted with a switch terminal to engage one of further switch terminals BL<SP>1</SP>KA, BL<SP>1</SP>KB for each wheel. In the event that no pulses of either frequency are transmitted, when contact 78 is closed, the two series switches BL<SP>1</SP>KA will cause a light 40 to illuminate and give a command for more information. If only a single pulse of frequency f 1  is received the lamp 38 is illuminated via switch BL<SP>1</SP>KB of wheel W1 to indicate "do not sell". If a single f 2  pulse is received the lamp 36 is illuminated via switch BL<SP>1</SP>KB on wheel W2 to indicate to the operator a telephone call is to be made. In each of these events no number is displayed owing to the proximity of the various combinations of blanks with respect to the visual read-out. Printed read-out may be provided in addition.
Patent GB-521647-A (GB)
Title: Improvements in or relating to the development and fixing of photographic prints
IPC: G03D3/08
Filed: 1938-11-23
Abstract: 521,647. Developing and fixing photographic prints. ROLL FILM CO., Ltd., and DANIELS, A. Nov. 23, 1938, No. 34060. [Class 98 (ii)] In an apparatus for developing or fixing photographic prints or films the prints or films are moved positively along a fixed track below the surface of the liquid by means of a flexible conveyer. In the apparatus shown, uprights 9, 10, 11 mounted on a base 8 carry sprockets 4 .. 7 on which is mounted an endless chain conveyer 3 having projections 14 which propel the prints through a track formed between outer and inner pairs of rails 16, 17, the print being placed on the upper run of the conveyer and carried down a vertical section to the lower run, which is immersed in the treating liquid.
Patent GB-447376-A (GB)
Title: Improvements in and relating to silencers for gaseous currents and the method of producing same
IPC: F01N1/24
Filed: 1935-12-09
Abstract: 447,376. Exhaust and like silencers. SERVAIS, N. H., 8, Old Pye Street, Westminster. Dec. 9, 1935, No. 34072. [Class 7 (ii)] A silencer for gaseous currents, e.g. the exhaust of an internal-combustion engine or the intake of a compressor, of the type comprising a casing provided with a filling of sound-absorbing material so arranged that there is left an unobstructed passage for the gases from the inlet to the outlet, comprises a casing containing a composite filling consisting of a comparatively fine fibrous or like sound-absorbing material, such as steel wool, glass wool, asbestos fibres, ordinary wool, or loose felt, and a more rigid material, such as expanded metal, wire netting, or wire gauze, the rigid material acting as a binding or lacing to hold the fibrous material together. The casing 10 has an inlet 11, an outlet 12, and a through passage surrounded by expanded metal 13 and steel wool 14 arranged in alternate layers so as to fill the remaining space in the casing. The filling is made by rolling one end of a length of expanded metal to form a tube, covering the remainder of the length with a layer of steel wool, and rolling up to form a roll adapted to fit in the casing. The fibrous material may be composed of strands of different thicknesses or differing otherwise. According to the Provisional Specification, the filling may consist of a series of annular wads of steel wool or of a corrugated roll of wire gauze.
Patent GB-1191743-A (GB)
Title: Apparatus for Applying Separator Sheets to Food Portions
IPC: B65B25/08
Filed: 1967-07-25
Abstract: 1,191,743. Packaging. HOBART MFG. CO. 25 July, 1967 [8 Aug., 1966], No. 34095/67. Heading B8C. [Also in Divisions B4 and F2] A machine for applying sheets of separator material to successive portions of food, e.g. meat patties has adjustable stops 45 so that a sheet 5 fed on to a pair of trap doors 32a, 32b is arrested in the path of a falling patty P pressed from a mould 22 by piston 24. When the patty is resting on the trap doors they are opened and allow it to fall on to a conveyer 40 that may move each patty away separately or collect them in stacks. Pre-cut sheets may be used or in a preferred arrangement the sheets may be cut from a roll of material just before they are fed. The roll (R), Fig. 2 (not shown) is locked on to a shaft (73) (see also Division F2), the rotation of which is restricted by a thumb screw brake (78) and the web is fed between connected rollers 100, 102. Roller 102 has a blade 125 (see also Division B4) and cuts a sheet once each revolution. Spring biased ball members 129 lift the web from behind the knife and brush 128 flicks the edge up to ensure correct feeding on to conveyer 142 beneath guide plate 130. A small toothed pulley attached to roller 134 and a larger one attached to roller 120 are connected by a timing belt so that conveyer 142 is moved faster than the roller 102 and the sheet is accelerated into its position above the trap doors 32a, 32b. The mould 22 reciprocates between a patty receiving and a discharge position above the trap doors and has a synchronized drive connection to rollers 100, 102 and conveyer 142. Thus each sheet of web material is fed so that it is positioned on the doors ready for the patty.
Patent GB-497253-A (GB)
Title: Improved manufacture of mullitic cast refractories
IPC: C04B35/18
Filed: 1937-12-09
Abstract: Refractories comprising mullite and corundum crystals with a cordierite matrix are made by fusing a mix containing alumina, silica and magnesia and subtantially free from alkali.  Examples refer to mixes comprising (a) alumina 65 per cent, silica 28 per cent and magnesia 7 per cent, and (b) alumina 70 per cent, silica 25 per cent and magnesia 5 per cent.  Specification 409,315 is referred to.
Patent GB-930314-A (GB)
Title: Textile bobbin handling apparatus
IPC: B65H67/06
Filed: 1959-10-08
Abstract: 930,314. Supplying bobbins to spinning machines. DEERING MILLIKEN RESEARCH CORPORATION. Oct. 8, 1959 [Oct. 13, 1958], No. 34171/59. Class 120 (3). [Also in Groups XVII and XXX] In bobbin-handling apparatus, successive layers of tapered e.g. warp, bobbins B stored in a box 11 are supplied to a shoot 17 on which the bobbins transfer to a station where they are manually removed, or automatically moved by intermittent advance and retraction of a pneumatically operated plunger 19b, and are individually seated on an endless belt 21, extending in front of a spinning frame F, for subsequent donning. Alignment of each successive layer with the plane of the shoot 17 on to which the bobbins are to be discharged from the box is ensured by progressively tilting a false bottom 13, on which all the bobbins are supported, as such support is raised in the box. The bottom 13 is moved by an automatically reversible motor M (or manually) through two (or pairs of) followers 23 pivotally connected to the bottom and engaging two (or pairs of) rotating screws 25a, 25b, which are of different pitch or have different speeds of rotation. The driving motor M is controlled by a switch 37 actuated by a spring-biased finger protruding through the shoot surface 17a so as to be opened or allowed to close according to the presence or absence of bobbins on the shoot adjacent the discharge edge of the box and thereby stop or start motor M raising bottom 13, subject, however, to the overriding control of limit switches 33, 35, responsive to bobbin and bottom movement in box 11. A pivoted guard 36 prevents overflow of bobbins at the rear of the box. Adequate movement, and a sufficient accumulation, of bobbins in the shoot is regulated and ensured by a spring-loaded door 45 to which intermittent, sharp, rearward movements are imparted by a pneumatically operated plunger 53a. Movements of plungers 19b and 53a are controlled by a switch 54 connected to a solenoid valve and operated by recurring striking engagement by projections or detents 57 on the belt 21. Operation of the plungers may be independent or synchronised through an electrical circuit controlling the air pressure to cylinders 19and 53, Fig. 7 (not shown). A truck 15 on which box 11 is mounted comprises air and electrical conduits 65 and 67 which, through couplings 69 and 73, 77 and 81, ensure correct connection with supply conduits 75 and 79 at fixed stations, and correctly position the apparatus in relation to the belt 21.
Patent GB-446025-A (GB)
Title: Improvements in or relating to the springing of wheels of vehicles
IPC: B60B33/04
Filed: 1934-11-28
Abstract: 446,025. Arrangement of vehicle wheels. SUPERBUILT PRODUCTS, Ltd., Bridge Street, Guildford, and ADEY, A. E., 99, St. Georges Road, Reading. Nov. 28, 1934, No. 34190. [Class 108 (ii)] The single wheel of a three-wheel or other pushcart is supported by a spring-pressed block or blocks 14 slidable in a hollow column or columns 7 each block having a hole to receive the wheel axle 15 which passes through slots 9 in the columns, each column being carried by the rear end of a bracket 6 the front end of which is fixed to a plate 4 rotatably supported from the underside of the vehicle frame 1. A single helical or rubber spring 13 may act as shown on one side of each block 14 or the block may be mounted between two such springs. The wheel may be in two parts separated and supported by a single column.
Patent GB-869645-A (GB)
Title: Improvements in or relating to fuel elements
Inventor: JACKSON ROBERT FLINDERS
IPC: G21C3/18
Filed: 1958-10-24
Abstract: 869,645. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 23, 1959 [Oct. 24, 1958], No. 34202/58. Class 39(4). In a nuclear reactor fuel element the physical conditions in or near the element are assessed by a sensitive element mounted within or on the sheath. As shown, the sensitive element 8 is mounted in the heat insulating disc 6 between the fuel 2 and end. cap 5. The element 8 is formed of cobalt foil 9 in stainless steel sheath 10. The irradiation received by the fuel element is estimated by the removal of 9 and the measurement of its activity. In a further embodiment, 8 may be formed of a material which, when raised above a given temperature, melts and flows into cavity 11. Upon cooling, 8 is removed and if distorted, indicates the exceeding of the given temperature by the fuel. Specification 779,408 is referred to.